1.Mekhahlelo e felletseng ea lihlahisoa, ho kenyeletsoa TPO, PVC EPDM,EVA,HDPE Geotextile.
2. Mefuta eohle ea li-membrane, ho kenyeletsoa tse matlafalitsoeng, boea bo ka morao, boea ba lehlabathe bo koahetsoeng, bo ikemetseng, boto ea maoto.
3.Lisebelisoa tsohle li teng, ho kenyeletsoa tse entsoeng esale pele, ho tiisa le li-fasteners.
4.Ha ho na matšoenyeho bakeng sa ntlha e 'ngoe le e' ngoe ka boleng, litheko, sephutheloana, thomello, thomello, tiisetso, tšebeletso joalo-joalo.